Wow, the misinformation. As a 25+ year recently retired UA (pre-merger UA) employee, I was an RCC/UC member almost the entire time (and still am). I believe some airlines had policies prohibiting employee members but PMUA did not.

Currently, not only are employee members allowed but as was posted above, employee travel profile can be linked to MP number meaning I scan my NRSA BP or what used to be called a DM card at the club entrance and the system does the rest (also has the advantage of NRSA listings show up in the United app automatically and listings can be made through the app - unlike most people, when we choose "Book A Flight" on the app, we then get a "Choose Travel Type" menu to choose between Revenue/Award and NRSA).

The restriction on employee ticket access in that chart seems to be strictly related to lounge entitlement based on having an appropriate *A ticket. It does not negate entitlement if the passenger is entitled to lounge access by another means.